About the Lumia 635

The Nokia Lumia 630 is a smartphone developed by Nokia that runs Microsoft's Windows Phone 8.1 operating system. It was announced on 2 April 2014, at Microsoft Build 2014 and scheduled to be released in July 2014. It has a Qualcomm Snapdragon 400 SoC with a quad-core processor (MSM8226 or MSM8626) and Adreno 305 GPU. Additionally, it has a 4.5-inch display and a 5 MP camera. The Lumia 635 is similar but 4G-compatible, lacks a dual-SIM version and comes in a different finish, while the Lumia 636 and 638 are identical, but come with 1 GB of RAM and are currently available only in China and India respectively.It is the successor of the Nokia Lumia 625, with an improved quad-core processor, but removes the front-facing camera, flash and dedicated camera button. Since the Nokia Lumia 630/635, all of the non-PureView Lumia phones have removed the camera buttons.On 2 March 2015, Microsoft presented its successor, the Microsoft Lumia 640, with improved 1280x720 HD display, 1 GB of RAM, 8 MP camera with 1080p video recording and LED flash, front-facing camera for selfies and video conference, large 2500 mAh battery, Office 365, Microsoft Outlook and Windows 10 Mobile upgrade ability.